How much power can a volvo dual prop drive handle.

[ShutYaPieHole]

I recently purchased a 1994 29' warlock. The boat was powered by a 502 mpi/volvo outdrive. Im upgrading the motor to a 540. Motor should be around 630-650 horses. My question is how much power can this volvo dual prop drive handle.
4340 forged crank
H-beams rods
Forged pistons(JE)9-1
Dart 325 Aluminum heads
Hyd. roller camshaft----chris struab's magic stick
Single plane intake w/ 950 holley

[ShutYaPieHole]

Thanks for the reply. I should be right in the 5000-5400 range.